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E. J. YOUNG.

INJECTOR.

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E. J. YOUNG.

INJECTOR.

No. 516,387. 7 PatentedMar. 13,1894.

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NITED' STATES PATENT OFFICE.

EDI/VIN J. YOUNG, OF WADSWORTH, OHIO, ASSIGNOR TO THE GARFIELD INJECTORCOMPANY, OF SAME PLACE.

INJECTOR.

SPECIFICATION forming part of Letters Patent No. 516,387, dated March13, 1894.

Application filed December 11,1893. Serial No. 493,346. (Model) To allwhom it may concern.-

Be it known that I, EDWIN J. YOUNG, a citizen of the United States,residing at Wadsworth, in the county of Medina and State of Ohio,haveinvented a certain new and useful Improvement in Injectors, of which thefollowing is a full, clear, and exact description.

As is well known, an injector is a machine for forcing water into aboiler against boiler pressure, and an ejector is a machine for raisingor lifting water. The two machines oftentimes, if not commonly, arecombined in' one apparatus which takes the single name of injector. Itis well known also that such injectors require a valve for controllingthe amount of steam for raising the water into the apparatus, andanother valve for controlling the overflow and another valve forcontrolling the direction of the steam carrying the water into theforcing apparatus, whereby it is directed to the boiler, and anothervalve interposed between the boiler inlet and the overflow, and thatthese four valves ordinarily have been provided with independent meansfor operating them, although it is not uncommon to provide externalmeans for operating two or more of them simultaneously. Ordinarily thesteam used in ejectors is in the form of a solid column, the center ofwhich exerts little if any force in raising the water, and, because ofits contained heat, it is a positive detriment in cases where the waterraised is desired in a mon to injectors upon a single operating stem orspindle, which stem is arranged with- Y in and not outside of theapparatus.

The invention also consists in certain details of parts and combinationsof parts as hereinafter more particularly set forth and claimed.

Having thus stated the principle of my invention, I will proceed now todescribe the best mode in which I have contemplated applying thatprinciple, and then will particularly point out and distinctly claim thepart or improvement which I claim as my invention.

In the accompanying drawings illustrating my invention, in the severalfigures of which like parts are similarly designated, Figure 1 is alongitudinal section of an ejector embodying my invention. Fig. 2 is aside elevation of my combined ejector and injector or double injector.Fig. 3 is an end elevation thereof. Fig. 4 is a cross-section taken inthe plane of line 44, Fig. 5; and Fig. 5 is asubstantially centrallongitudinal sectional elevation of the double injector.

The'simplest form of my invention is its application to ejectors ordevices for raising or lifting water without regard to the use to whichsuch water is to be applied. An illustration of this use is shown inFig. 1, whereiu A is a shell of suitable construction, and containing asteam jet or tube B and a lifting tube 0, such, for example, as arecommonly employed in the lifting portion of an injector but somewhatlarger in order to receive the rod or cylinder presently described. D isa steam pipe suitably connected to the shell A to admit steam to the jetB, and E is a valve in said steam pipe for controllingthe admission ofsteam to the shell.

F is a round rod'or true cylinder of metal, arranged within and passing,through the steam j etB and lifting tube 0 and supported stationarilywithin the shell and centrally within the tubes B and O by means of anysuitable supports G and H.

I is the nipple for connection with the water supply and K is a deliverynipple. If, now, the Water connection be made and steam be admitted tothe shell, the steam will pass through the tubesB and O and be spreadout by and around the rod Fin the form of a hollow column, and drivingthe air before it, will exhaust the shell and its tubes of air and solift the water. Since the rod or cylinder passes through both the steamjet and the lifting tube, the steam is preserved in the form of a hollowcolumn until its work is accomplished. By thus spreading out the steamthrough these tubes in the form of a hollow column, less steam isrequired to effect the raising of the water, and moreover, the water isfreed from the heat that it would derive from the solid column of steamwere that used, and hence the water is delivered cool and in a fit stateto use for condensing purposes. Not only does the use of a hollow columnof steam effect a saving in steam but it also quickens the action ofraising the water, since its expulsive force is distributed over alarger area.

Another useful form of my invention is shown in Figs. 2 to 5, wherein acombined ejector and injector is shown. In these figures, the casing CLmay be made as one casting with the lifting or ejector portion a and theforcing or injector portion 0?; the steam inlet nipple b, the waterinlet nipple c, and the overfiowd. The boiler connection e may be madeas a separate piece tapped into the end of the lifting portion a; andthe other end of the lifting portion is provided with a hub or bonnetf,which may be supplied with the gland or stuffing box g; and one end ofthe forcing portion a is screwthreaded internally and closed by means ofthe removable screw plug it. The steam inlet 12 surrounds the forcingportion and is cored out at b, 1), around such forcing portion, and thiscoredout portion is open at 12 into the lifting portion of theapparatus.

2' is the steam jet, andj the lifting tube in the ejector, which may beof usual construction, excepting as hereinafter described and correspondwith parts B and C in Fig. 1.

k is the steam jet in the ejector, and Z the forcing tube therein; andthis forcing tube opens into a passage m, which leads to the boilerthrough the boiler coupling 6, past the overflow. The steam jet 2' isprovided with an annular recess or groove 1', which formsa steampassage, access to which steam passage 2" is had through longitudinalholes 1 and opposite the said holes 2' the said steam jet forms a valveseat for the duplex steam valve presently described. The steam jetz'isprovided with wings or lugs 2' and thelifting tubej is provided withwingsj,and the steam jet [6 is also provided with wings 7c, and the tubeZ is also provided with wings Z, whereby, by In cans of a hollow wrench,the said jets and tubes may be screwed into place and removed atpleasure. The duplex steam valve is composed of an annular tubenhavingtransverse ports n opening into its hollow interior. This valve floatsupon a hollow valve stem 0, which is provided with a valve 0, and thesaid valve n is secured to the hollow valve stem 0 by means of anannular nut M. The valve 0' is provided with wings or ribs 0 whichproject into the opening of the valve 'nto sustain the said valve ninthe various movements of the valves n and o with relation to oneanother. The valve stem 0 is screwthreaded at 0 to engage acorresponding screwthread in the honnetf, and to the end of this valvestem 0 is applied, in any suitable manner, the operatin g hand-wheel 19,which is closed steam-tight by a screw plug 1;. Within the hollow stem 0is arranged the valve spindle, stem, or rod q, and this rod passesthrough the steam jet and lifting tube and ports a", r in the overflow,and there its inner end is supplied in any suitable manner with thevalves .9 and t. The valve 8 is supplied with a cylindrical projection sand the Wings .9 The valve 3 and its cylindrical projection control theoverflow port? and the wings s fitting in the port 0' guide the stem qin the further movement of the same, While the valve t controls theoverflow port 0". A port u communicates between the forcing tube and thesteam groove or chamber 2" in the steam jet 1', and port 4) openscommunication between the lifting portion or ejector and the forcingportion or injector for the passage of water from the ejector to thesaid injector.

The rod q and the stem 0 are connected so as to move together by meansof a washer q and the cross-pin g or they may be connected in any othersuitable manner.

The operation is as follows: WVhen the injector is not in operation, thewheelp will be turned so as to move the valve 7?. down upon its seat onthe steam jet 2', thereby closing the ports d as well as closing thesteam jet, and the valve 0 will be seated upon its seat n in the valven, thereby closing the portsn, and, at the same time, the valves 5 and15 will be moved to uncover the ports 9' and r in the overflow. In thisposition of parts, steam fills the chamber, covering the valves 0?. and0, and hence no valve is required in the steam pipe to operate theinjector. If now the wheel p be turned and raises the valve 0' from itsseat, steam will enter the hollow valve n and hold the latter to itsseat while the steam passes through the said hollow valve and out ofsaid hollow valve around the valve stem q, and thence through the steamjet and the lifting tube in the form of a 1101- low column in. themanner and with the eficct described with relation to the constructionshown in Fig.1. The steam exhausts at valve 3' until the water is raisedand then the wheel is turned far enough to draw the portion 8' of saidvalve 8 into the port 0*, and thus divert the Water through the passage2: into the forcer; and, at the same ti1ne,or immediately thereafter,the valve n is lifted from its seat and steam is admitted through theholes 2' into the steam way 2'', and thence into the forcer through theport it, whereby the injector is put into full operation, excepting thatthe valve 15 still allows the forced water to escape at the overflowuntil the velocityis fully established, and when that occurs, then thewheel 1) is turned until the valves 8 and t are fully seated in theirports a and r and the overflow thus completely closed, when the watergoes directly through the forcer to the boiler. It will be observed thatby means of the one valve rod q, the four valves necessary to operatethis form of injector are given their respective movements at the propertimes for raising the water, diverting it from the ejector into theforcer or injector, and thence forcing it into the boiler. The rod whicheifects this movement of the valves is wholly inclosed within theapparatus and thus is out of danger of being broken or distorted, as sofrequently occurs with those injectors where the valve-operatin gdevices areexposed on the outside of the apparatus. Instead of operatingthe valve rod g by means of a handwheel and screw, it might be operatedby means of a lever in the ordinary manner, but I prefer the screw andhand-wheel.

Obviously, my invention of applying to valves a single operating deviceconcealed within the apparatus is applicable to other forms of injectorsthan that herein specifically described and illustrated, whether thevalve rod, stem or spindle is passed through the lifting tubes or not,with but slight obvious mechanical changes in the construction of suchapparatus; and I mean to include as within my invention the applicationof this valve-operating mechanism to any and all forms of doubleinjectors and other equivalent injectors.

By the construction of injector described, the apparatus is renderedvery simple in operation and iseasily controlled, is very quick to raisethe water and to establish flow to the boiler, and may be veryeconomically produced; its parts are all readily accessible withoutbreaking the boiler connection, and hence repairs may be quickly madeand defects or injuries remedied.

What I claim is 1. In a steam water raising or lifting apparatus, asteam jet or tube, a lifting tube and a round rod or cylinder arrangedWithin and passing through both to spread out the steam in the form of ahollow cylindrical column thereby giving a large working area with asmall quantity of steam and reducing its heating capacity, substantiallyas described.

2. The combination with an injector or forcer, of an ejector mechanism,comprising a steam jet, a lifting tube, and a round rod or cylinderarranged within and passing through both to spread out the steam in theform of a hollow cylindrical column thereby giving a large working areawith a small quantity of steam and reducing its heating capacity,substantially as described.

3. An injector or forcer, in combination with an ejector mechanismcomprisinga steam jet, a liftingtube, and acylinder or rod passedthrough the said steam jet and lifting tube to spread out the steam inthe form of a hollow cylindrical column thereby giving a large workingarea with a small quantity of steam and reducing its heating capacity,and the steam and water controlling valves applied to and operated bysaid rod, substantially as described.

4. In an injector, the combination of alifting steam jet, a liftingtube, an overflow, and a forcing apparatus, of four valves forcontrolling the course of the steam and the course ofthe water, and asingle spindle, rod or stem, upon which said valves are arranged, thesaid spindle, rod or stem being arranged within the apparatus andextending through the lifting steam jet and the lifting tube, andoperated from outside, substantially as shown and described. I

5. In an injector,aduplex steam valve composed of a floating hollowvalve, a positivelymovable valve arranged within the same and having itsseat within said floating valve and adapted by further movement to seatthe said hollow valve, and the steam-jet having a seat for said hollowvalve provided with ports leading into a steam passage which opens intothe forcing apparatus for forcing the water to the boiler, substantiallyas described.

6. In an injector, the combination with the lifting apparatus and theforcing apparatus, of a duplex steam valve, an overflow having ports onthe lifting side and on the forcing side of said apparatus, valvesarranged in said ports, and a spindle, rod or stem common to the saidoverflow valves and duplex steam valve, for controlling the admission ofsteam both to the lifting and to the forcing mechanisms, and whereby themovements of said valves are controlled, substantially as described.

7. The combination in a single shell or case, of a water liftingmechanism and a .waterforcing mechanism, a duplex steam valve forcontrolling the initial admission of the steam to the lifting mechanismand thereafter to admit the steam to the forcing mechanism, a water-waybetween the lifting mechanism and the forcing mechanism, and an overflowinterposed between the two mechanisms and provided with ports openinginto the said overflow from the lifting side and the forcing side,valves arranged in the said overflow ports, and a valve stem, rod orspindle common to the duplex steam valve and the two overflow valves,and arranged within the apparatus, substantially as described.

In testimony whereof I have hereunto set my hand this 8th day ofDecember, A. D.

EDWIN J. YOUNG.

Witnesses:

WM. H. FINCKEL, HARRY Y. DAVIS.

